TY  - JOUR
AU  - Kahlenberg, Robert
AU  - Falkinger, Georg
AU  - Schuster, Roman
AU  - Miesenberger, Bernhard
AU  - Arango, Nicolás García
AU  - Maawad, Emad
AU  - Povoden-Karadeniz, Erwin
AU  - Milkereit, Benjamin
AU  - Kozeschnik, Ernst
TI  - Deconvolution of superimposing reaction signals from DSC curves in selected Al-Mg-Si-(Cu) alloys by mean-field modeling and HEXRD
JO  - Thermochimica acta
VL  - 755
SN  - 0040-6031
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PUBDB-2026-00636
SP  - 180181 
PY  - 2026
AB  - The present work describes a systematic approach to improve mean-field simulations of dissolution and precipitation of precipitates from the late stages in the precipitation sequence in AlMgSiCu alloys for processing simulations. In addition to metastable precipitates, it considers the evolution of two populations (coarse and fine) of the thermodynamically stable phases in EN AW-6061 and EN AW-6016, β-Mg2Si and Si respectively. The setup is based on two previous publications using heterogeneous nucleation site energies and their distribution. The simulations are calibrated using data from continuous cooling and heating experiments obtained with differential scanning calorimetry (DSC) and high-energy X-ray diffraction (HEXRD). We show that mean-field simulations combined with DSC and HEXRD can provide valuable information to eliminate uncertainties related to, for instance, the thermodynamic description of metastable precipitates. The method described in this paper also delivers very reasonable results for the evolution of the individual phase fractions. It potentially facilitates the assessment of the influence of different types of nucleation sites and their densities. 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.tca.2025.180181
UR  - https://bib-pubdb1.desy.de/record/645817
ER  -